Quiz 13

Question 1

Which class of antibody is able to cross the placenta from mother to developing fetus?

Answer 1

IgA

Question 2

When an individual is purposely exposed to a controlled dose of harmless antigen to induce formation of antibodies, that individual acquires:

Answer 2

Artificial active immunity

Question 3

___ is the most common and longest-lasting class of antibody in the blood.

Answer 3

IgG

Question 4

Infants acquire ___ when maternal antibodies are transferred across the placenta and through breast milk from mother to child.

Answer 4

Natural passive immunity

Question 5

Which of the following is TRUE of macrophages?

Answer 5

All answer choices are true.

They devour foreign objects
They are part of the second line of defense
They are phagocytic cells

Question 6

What is the term for the process in which pathogens are coated with antimicrobial proteins to increase the likelihood of phagocytosis?

Answer 6

Opsonization

Question 7

T cells recognize peptide antigens ONLY in the context of:

Answer 7

MHC

Question 8

Some autoimmune diseases are caused by ___, antibodies that interact with ___.

Answer 8

Autoantibodies / self antigens

Question 9

How is a fever beneficial for fighting an infection?

Answer 9

The higher temperature inhibits the growth of some microbes

Question 10

The protective immunity conferred by antibodies and T cells due to exposure to antigens through infection is known as:

Answer 10

Natural active immunity